Title:
COUNTERBALANCE VALVE
Document Type and Number:
Japanese Patent JPS59222681
Kind Code:
A
Abstract:
PURPOSE:To make stable control attainable, by setting up a check valve and a control spool in series inside a body. CONSTITUTION:A check valve R and a control spool S are set up in series inside a body 14, while a spring 19 is installed in a damper chamber between the check valve R and the body 14. With this constitution, a seal 22 is enough to be installed in only one spot at a sliding part of the check valve R. Therefore, a frictional loss due to sealing is well reduced and stable control is thus made attainable.
Inventors:
FURUTA TOSHIHIRO
Application Number:
JP9552683A
Publication Date:
December 14, 1984
Filing Date:
May 30, 1983
Export Citation:
Assignee:
KAYABA INDUSTRY CO LTD
International Classes:
F16K17/04; F16K39/02; (IPC1-7): F16K17/00
Attorney, Agent or Firm:
Nobuyuki Shima